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Study on Optimum Ratio of Inner Cable and External Cable in Prestressed Concrete Bridges Stiffened with External Cable

Research Project

Project/Area Number 08650524
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 土木材料・力学一般
Research InstitutionAkita University

Principal Investigator

KAWAKAMI Makoto  Akita University, Mining College Civil Engineering Professor, 鉱山学部, 教授 (90006693)

Co-Investigator(Kenkyū-buntansha) KAGAYA Makoto  Akita University, Mining College Civil Engineering Associate Professor, 鉱山学部, 助教授 (00091794)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
KeywordsExternal Cable / Optimum Ratio of Inner Cable and External Cable / Cracking Strength / Ultimate Strength / Time-Dependent Stress Analysis / Composite Prestressed concrete Bridge
Research Abstract

1) Bending tests of prestressed composite box girder with steel trussed web were carried out to clarify cracking strength, ultimate strength and collapse mode.
2) The above test results from elastic state to ultimate state of the girder were compared with theoretical ones analyzed by plane frame computer program of finite element method. Furthermore, parametric analysis was performed and the results were summarized.
3) Based on the above test results and parametric analysis, the optimum ratio of inner cable and external cable was discussed.
4) The long-term deformation test was measured. Own weight and prestressing force are the sustained load. Displacements and strains due to creep and shrinkage of concrete were measured more than one year.
5) Time-dependent stress of the structures with external cable were analyzed and its computer program was Developed.
6) The test results of long term deformation were compared with the analyzed results.
7) The optimum ratio of inner cable and external cable in the structures with external cable considering the long-term deformation, was investigated.
8) All results of two years from 1996 to 1997 were summarized and the repot was completed.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Kawakami, M.and Ghali, A.: "Time-Dependent Stressess in Ptrestressed Concrete Secions of General Shape" PCI Journal. Vol.4,No.3. 96-105 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kawakami, M.and Ghali, A.: "Cracking,Ultimate SStrength and Deformations of Prestressed Concrete Ssections of General Sshape" PCI Journal. Vol.4,No.4. 114-122 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 樫福 浄、川上 洵、松塚 忠政、徳重 英信: "PC曲線部材の弾塑性解析" 構造工学論文集. V.43A. 1229-1239 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 川上 洵、松塚 忠政、樫福 浄、徳重 英信: "鋼性マトリックス法による 連続合成桁の時間依存性応力解析" 構造工学論文集. V.43A. 1323-1330 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 大沢 浩二、川上 洵、劉 新元、佐野 ユミ子: "鋼トラスウェブPC梁の 静的載荷試験" 第7回プレストコンクリートの発展に関するシンポジウム論文集. 757-760 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 柴田 希恵、佐野 ユミ子、川上 洵: "外ケーブルを用いた複合トラス橋の長期変形" 土木学会東北支部技術研究発表会講演概要集. 662-663 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kawakami, M.and Ghali, A.: ""Time-Dependent Stresses in Prestressed Concrete Sections of General Shape"" PCI Journal. Vol.4, No.3. 96-105 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kawakami, M.and Ghali, A.: ""Cracking, Ultimate Strength and Deformations of Prestressed Concrete Sections of General Shape"" PCI Journal. Vol.4, No.4. 114-122 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kashifuku, K,Kawakami, K., Matsuzuka, T.and Tokushige, H.: ""Elasto-Plastic Analysis of Prestressed Concrete Curved Members"" Journal of Structural Engineering. Vol.43A. 1229-1239 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Kawakami, K., Matsuzuka, T., Kashifuku, K and Tokushige, H.: ""Time-Dependent Stress Analysis of Continuous Composite Girder by Stiffness Matrix Method"" Journal of Structural Engineering. Vol.43A. 1323-1230 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Ohsawa, K., Kawakami, M., Ryu Shingen and Sano, Y.: ""Static Loading Test of Composite PC Girder with Trussed Steel Web"" Proceedings of The 7th Symposium on Developments in Prestressed Concrete. 757-760 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Shibata, K., Sano, Y.and Kawakami: ""Long-Term Deformation of Composite Pc Girder with Trussed Steel Web"" Abstracts of Annual Technical Meeting 1998, JSCE Tohoku Branch. 662-663 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 樫福 浄、 川上 洵、 松塚忠政、 徳重英信: "PC曲線部材の弾塑性解析" 構造工学論文集. V.43A. 1229-1239 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 川上 洵、 松塚忠政、 樫福 浄、 徳重英信: "剛性マトリックス法による 連続合成桁の時間依存性応力解析" 構造工学論文集. V.43A. 1323-1330 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 大沢浩二、 川上 洵、 劉 新元、 佐野ユミ子: "鋼トラスウェブPC梁の 静的載荷試験" 第7回プレストレストコンクリートの発展に関するシンポジウム論文集. 757-760 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 柴田希恵、 佐野ユミ子、 川上 洵: "外ケーブルを用いた複合トラス橋の長期変形" 土木学会東北支部技術研究発表会講演概要集. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 川上 洵、 菅原 昭麿、 松塚忠政、 樫福 浄、 徳重英信: "プレストレストコンクリート橋脚の終局強度および構造特性" 構造工学論文集. V.44A. (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kawakami,M.and Ghali,A.: "Time Dependent Stresses in Prestressed Concrete Secions of General Shape" PCI Journal. V41,No.3. 96-104 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kawakami,M.and Ghali,A.: "Cracking Ultimate Strength and Deformations of Prestressed Concrete Sections of General Shape" PCI Journal. V41,No.4. 114-122 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 佐野ユミ子、佐々木幸一郎 川上 洵: "外ケーブルを用いた複合トラス橋梁の構造解析" 土木学会東北支部技術研究発表会講演概要集. (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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